72 void key_set_expiry(struct key *key, time64_t expiry)  in key_set_expiry()  argument
74 	key->expiry = expiry;  in key_set_expiry()
76 		if (!(key->type->flags & KEY_TYPE_INSTANT_REAP))  in key_set_expiry()
138 		struct key *key =  in key_gc_unused_keys()  local
139 			list_entry(keys->next, struct key, graveyard_link);  in key_gc_unused_keys()
140 		short state = key->state;  in key_gc_unused_keys()
142 		list_del(&key->graveyard_link);  in key_gc_unused_keys()
144 		kdebug("- %u", key->serial);  in key_gc_unused_keys()
145 		key_check(key);  in key_gc_unused_keys()
148 		remove_watch_list(key->watchers, key->serial);  in key_gc_unused_keys()
149 		key->watchers = NULL;  in key_gc_unused_keys()
153 		if (state == KEY_IS_POSITIVE && key->type->destroy)  in key_gc_unused_keys()
154 			key->type->destroy(key);  in key_gc_unused_keys()
156 		security_key_free(key);  in key_gc_unused_keys()
159 		if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) {  in key_gc_unused_keys()
160 			spin_lock(&key->user->lock);  in key_gc_unused_keys()
161 			key->user->qnkeys--;  in key_gc_unused_keys()
162 			key->user->qnbytes -= key->quotalen;  in key_gc_unused_keys()
163 			spin_unlock(&key->user->lock);  in key_gc_unused_keys()
166 		atomic_dec(&key->user->nkeys);  in key_gc_unused_keys()
168 			atomic_dec(&key->user->nikeys);  in key_gc_unused_keys()
170 		key_user_put(key->user);  in key_gc_unused_keys()
171 		key_put_tag(key->domain_tag);  in key_gc_unused_keys()
172 		kfree(key->description);  in key_gc_unused_keys()
174 		memzero_explicit(key, sizeof(*key));  in key_gc_unused_keys()
175 		kmem_cache_free(key_jar, key);  in key_gc_unused_keys()
198 	struct key *key;  in key_garbage_collector()  local
226 		key = rb_entry(cursor, struct key, serial_node);  in key_garbage_collector()
229 		if (refcount_read(&key->usage) == 0)  in key_garbage_collector()
233 			if (key->type == key_gc_dead_keytype) {  in key_garbage_collector()
235 				set_bit(KEY_FLAG_DEAD, &key->flags);  in key_garbage_collector()
236 				key->perm = 0;  in key_garbage_collector()
238 			} else if (key->type == &key_type_keyring &&  in key_garbage_collector()
239 				   key->restrict_link) {  in key_garbage_collector()
244 		expiry = key->expiry;  in key_garbage_collector()
246 			if (!(key->type->flags & KEY_TYPE_INSTANT_REAP))  in key_garbage_collector()
250 				       key_serial(key), key->expiry - limit);  in key_garbage_collector()
251 				new_timer = key->expiry;  in key_garbage_collector()
256 			if (key->type == key_gc_dead_keytype)  in key_garbage_collector()
261 			if (key->type == &key_type_keyring)  in key_garbage_collector()
266 			if (key->type == key_gc_dead_keytype)  in key_garbage_collector()
341 	kdebug("unrefd key %d", key->serial);  in key_garbage_collector()
342 	rb_erase(&key->serial_node, &key_serial_tree);  in key_garbage_collector()
345 	list_add_tail(&key->graveyard_link, &graveyard);  in key_garbage_collector()
354 	keyring_restriction_gc(key, key_gc_dead_keytype);  in key_garbage_collector()
364 	keyring_gc(key, limit);  in key_garbage_collector()
372 	kdebug("destroy key %d", key->serial);  in key_garbage_collector()
373 	down_write(&key->sem);  in key_garbage_collector()
374 	key->type = &key_type_dead;  in key_garbage_collector()
376 		key_gc_dead_keytype->destroy(key);  in key_garbage_collector()
377 	memset(&key->payload, KEY_DESTROY, sizeof(key->payload));  in key_garbage_collector()
378 	up_write(&key->sem);  in key_garbage_collector()